Plenum for a pneumatic distribution system



FIG. 1 is a perspective view of a plenum for a pneumatic distribution system, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a back elevation view thereof.

The broken line in the figure drawings represents unclaimed environment only and forms no part of the claimed design. 

CLAIM The ornamental design for a plenum for a pneumatic distribution system, as shown and described. 